Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's system that helps you brake easily isn't getting enough power. It's like when a toy doesn't have enough battery power to work properly.
This code indicates a problem with the power supply to the brake booster pump, which is essential for providing the necessary force to assist braking.
The P11FC code is triggered when the Engine Control Module (ECM) detects a low voltage condition in the brake booster pump power supply circuit. This circuit is responsible for supplying the necessary electrical power to the brake booster pump, which helps in amplifying the force applied to the brake pedal.
• Increased effort required to press the brake pedal
• Brake warning light illuminated on the dashboard
• Unusual noises when braking
• Faulty brake booster pump
• Damaged wiring or connectors
• Blown fuse in the brake booster circuit
Brake Booster: A device that amplifies the force applied to the brake pedal.
ECM: Engine Control Module, the computer that controls engine functions.
• Check the brake booster pump fuse for continuity.
• Inspect wiring and connectors for damage or corrosion.
• Test the brake booster pump for proper operation.
• Replace the faulty brake booster pump.
• Repair or replace damaged wiring and connectors.
• Replace any blown fuses in the circuit.
• Multimeter
• Fuse puller
• Wiring repair kit
$150 - $500
Moderate
• Toyota Camry
• Honda Accord
• Ford Fusion
• Regularly inspect electrical connections for corrosion.
• Ensure fuses are in good condition.
• Perform routine maintenance checks on the braking system.
Electrical Circuit Issue
• Avoid driving the vehicle until the issue is resolved.
• Consult a professional mechanic for a thorough inspection.
Check with your vehicle manufacturer for warranty coverage on brake system components.
This code has been associated with issues in vehicles with electric brake booster systems, especially in models from the mid-2010s.
High – Brake system issues should be addressed immediately to ensure safe vehicle operation.
Driving with compromised braking systems can lead to accidents and is not recommended. Ensure repairs are carried out by qualified personnel.
• Vehicle ignition on
• Brake pedal depressed
The brake booster pump is typically located near the brake master cylinder in the engine compartment.
Q: Can I drive with a P11FC code?
A: It is not recommended to drive with this code active as it affects the braking system's performance.
Q: How can I reset the P11FC code?
A: After repairs, the code can be cleared using an OBD-II scanner, but it will return if the issue is not resolved.
Pro · Four-system diagnostics
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Chassis and ABS faults usually need a scanner that can read brake-system data directly.
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